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aleksey47
@aleksey47
July 2022
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Квадратные уравнения и их корни.
(X+1)^2=7918-2x
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stas14220
(X+1)^2=7918-2x
х2
+ 2х + 1 - 7918 + 2х = 0
х
2
+ 4х - 7917 = 0;
D1
= 2
2
+ 7917 = 7921
х = -2 ± 89
x1
= -91
х2 = 87;
1 votes
Thanks 3
meowizzi
еще каждый ответ разделить на 2
meowizzi
а все, извиняюсь
stas14220
Это, я думаю, Вы и сами сможете сделать.
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Answers & Comments
х2 + 2х + 1 - 7918 + 2х = 0
х2 + 4х - 7917 = 0;
D1 = 22 + 7917 = 7921
х = -2 ± 89
x1 = -91
х2 = 87;